Door operating and closing mechanism.



A. P. FELSBERG.

DOOR OPERATING AND cLosme MECHANISM.

' APPLICATION HLED DEC. 18' l9l4.

' Patented. Aug. 31, 1915.

2 SHEETS-SHEET I- m 91% 1 am 4 E. A 2/ 5% m Yw MN N w m 1 FY WITNESSES:

A. P. FELSBERG. DOOR OPERATING AND CLOSING MECHANISM.

APPLICATION FILED DEC. 18. 1914.

1,151,773 Patented Aug. 31,1915.

2 SHEETSSHEET 2.

miimnm INVENTOR? Fifi hut P. F E151! ATTORNEYS l FFEQE.

ARTHUR P. FELSBERG, OF NEWARK, NEW JERSEY.

DOOR OPERATING AND CLOSING MECHANISM.

Specification of Letters Patent.

Fatented Aug. 31 1915.

Application filed December 18, 1914. Serial No. 877,952.

To all whom it may concern 7 Be it known that I, [ARTHUR P. FnLsBERG, acitizen of the United States, residing at Newark, in the county of Essexand State of New Jersey, have invented certain new and usefulImprovements in Door Operating and Closing Mechanism; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such'as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to characters of reference marked thereon,which form a part of this specification.

This invention relates, generally, to improvements in heat-regulatingdevices; and, the present invention has reference, more particularly, toa novel mechanical -means for variously permitting the retention of thefurnace door of a furnace orheater in its open relation, but being underthe control of a time-operated device, preferably of the character setforth in Letters-Patent No. 1,103,57d, granted to myself July 14th, 191f, for automatically releasing at a pre-determined time the saiddoor-closing means to automatically close the said furnace-door.

The invention has for its principal object to provide a novel and simplyconstructed mechanical door-operating means, controlled as above-statedby a time-operated device, which can readily be applied in its operativeposition upon a heater or furnace, the parts of which can be variouslyset so that the furnace-door can be retained in various open relationsto the heater or furnace, as may be desired, and which mechanism when released operates most effectively to close the furnace-door, whenrequired.

The invention has for its further object to provide amechanicaldoor-closing means of the general character hereinafter moreparticularly set forth, the mechanism comprising a spring-actuated andcontrolled rotatable stud, and means for variously setting a releasingarm, as well as a door-closing lever separably connected with the saidrotatable stud, the said door-closing lever being also adapted forsetting said releasing arm, and as an auxiliary means for varying thetension of the spring which is connected with the stud,'so that thedoor-operating and closing mechanism is applicable to doors ating andclosing mechanism hereinafter set forth; and, the invention consists,furthermore, in the novel arrangements and combinations of the variousdevices and parts, as well as in the details of the construction of thesaid parts, all of which will be more fully described in detail in thefollowing specification, and then finally embodied in the clauses of theclaim which is appended thereto and which forms an essential part of thesaid specification.

The invention is clearly illustrated in the accompanying drawings, inwhich 2-- Figure l is fragmentary front elevation of a furnace and thefire-door hinged thereto and shown in its closed relation, said viewillustrating in connection therewith and shown in front elevation adoor-operating and closing mechanism made according to and embodying theprinciples of the present invention, the various parts of the saidmechanism being represented in their normal initial positions withrelation to each other after the furnace-door has been closed; and Fig.2 is a horizontal sectional representation of said portions of thefurnace and closed furnace-door, and a plan or top view of the saiddoor-operating and closing mechanism illustrated in said Fig. 1. Fig. 3is a similar view of the said devices and parts shown in said Fig. 2,but illustrating the furnace-door in an open position, and the saiddoor-opening and closing mechanism set to close the door when releasedby a time-operated device. Fig. 4 is an elevation of the door-operatingand closing mechanism, looking in the direction of the arrow at in saidFig. 2, with the door and furnace-portion omitted from said view, theparts of the mechanism being represented in their normal initialpositions ready for setting; and Fig. 5 is a similar elevation of thesaidmechanism with the setting arm represented in its raised andreleased relation to the remaining parts of the mechanism. Fig. 6 is aplan view of the setting arm shown in its detached relation from theremaining portions of the door-operating and closing mechanism. I p vSimilar characters of reference are employed in all of the said abovedescribed views, to indicate corresponding parts.

Referring now to the said figures of the drawings, thereferencecharacter 1 indicates a fragmentary portion of any suitablefurnace or heater, and 2 indicates one of its usual hinge-lugs, withwhich is pivotally connected by means of a pm or bolt, as 3, one of thehinge-lugs 5 of the furnace-door 4.

The herein-above mentioned door-operating and closing mechanism, showingone embodiment of the principles of the present invention consists,essentially, of a plate-like upright, as 6, from which extend in lateraldirections a pair of lugs or supports 7 and 8. The said lower lug orsupport 7 is provided with an upwardly extending stud 9, and the upperlug or support 8 is made with a suitable perforation which forms abearing in which is rotatably mounted a short spindle or stud 10. Theupper portion of said spindle or stud 10 projects for some distanceabove the upper face of said lug or support 8, said upwardly projectingportion of the said spindle or stud being of hexagonal or other suitablyformed configuration, as shown in Figs. 2 and 3 of the drawings, and forthe purposes to be presently more fully set forth, and the lowercylindrical portion of the said spindle or stud 10 projects below thelower surface of the said bearinglug or support 8, substantially asshown in Fig. 1 of the drawings. Connected with the said bearing-lug orsupport 8, in any suitable manner, is a segmental element or member, as11, usually in the form of a quadrant, said element or member beingprovided upon its upper surface with upwardly projecting ratchet teeth,as 12, also arranged in the arc ofa circle and preferably at thearc-shaped marginal edge of the said segmental element or quadrant 11,substantially in a manner as shown in Figs. 1, 2 and 3 of the drawings.Suitably mounted between the said lugs or supports 7 and 8 with itslower end-portion suitably secured to the upwardly extending stud 9 andits upper end-portion suitably secured to the downwardly projectingportion of the said spindle or stud 10 is a suitable coiled spring 18.That the said plate-like upright 6, and its parts, may be secured in itsoperative position with relation to the heater or furnace 1 and thefurnace-door 2, the said plate-like upright has connected.therewith, andextending therefrom in' a manner illustrated in the several figures ofthe drawings, a rectangularly shaped and open frame-like structure, as14, the upper and lower platelike members 15 and 16, are provided withsuitable perforationsor holes, as 17 and as indicated in dotted outlinein Fig. 1 of the drawings. To positively secure these parts of themechanism in their operative positions, the pin or bolt 3 is removed,and the hinge-lugs 2 and 5 are sufliciently separated, to permit thesaid frame-like structure 14 to be slipped upon the hinge-lug 2 so as toembrace the same. The hinge-lug 5 is thereupon placed upon the upperplate-like member 15, and the various parts connected in this assembledrelation by the re-insertedpin or bolt 3, as will be evident from aninspection more particularly of Fig. 1 of the drawings. The verticalportion 18 of the said frame-like structure is: suitably provided with ascrew-threaded hole forthe reception of a suitable set-screw, as19, theend of which can be screwed against the hingelug 2, so that theframe-like structure will be rigidly secured against accidentaldisplacement in its embracing relation with the said hinge-lug, as willbe clearly evident.

The previously-mentioned setting arm, as will be seen from Fig. 6 of thedrawings, consists, essentially of two members, 20 and 21, the member 20having a hexagonal or other polygonally-shaped wrench-like portion 22,adapted to be fitted over the hexagonal or other polygonally-shapedportion of the rotatable spindle or stud 10. Extending laterally fromsaid wrench-like portion 22 are a pair of fingers, as 23 and 24, formedwith a space 25 between them. One of the said fingers, as 24, is alsoprovided with a suitably formed and laterally projecting lug, as 26, orother suitable means for providing a stop, and suitably secured to thesaid fingers 23 and 24, and extending across the space 25, is apivot-pin 27, upon which is pivotally mounted, so as to swingvertically, the member 21, forming the setting arm of the mechanism.This arm or member 21 is of sufiicient length that its free end-portioncan be readily slipped over the ratchet-teeth 12 of the quadrant 11,when moved hori- 1 zontally in one direction, and can be dropped 2 intolocked engagement with the desired tooth 12 for set-ting, and to preventits return to its normal initial position, until disengaged from itsretained engagement with the tooth in the manner to be hereinafter morefully described. The said member or arm 21 is also provided in its loweredge with a recess 28 which registers with the stop-lug 26 of the finger24, to prevent the said member or arm from dropping below the horizontalplane of the quadrant 11, when the parts are in their normal position,before the mechanism is set. In a proper place, and'upon its upperedge,- the said news member or arm 21 may also be provided with aprojection or stop-lug, as'29, the purpose of which will be presentlydescribed.

In addition to the above described devices and parts, there is alsoemployed a door-engaging arm or lever, as 30, which is provided with ahexagonal or other suitable polygonally-shaped wrench-like end-portion,as 31, adapted to be detachably fitted over the hexagonal orpolygonally-shaped end-portion of the previously mentioned spindle orstud 10.

Having in the foregoing described the general arrangement andconstruction of the various devices and parts of a furnace-dooroperatingand closing mechanism illustrating one embodiment of the principles ofthe present invention, I will now briefly set forth the manner ofsetting the mechanism, whereby the furnace-door may be retained in itsopen relation to the furnace, and when the mechanism is released by atime-com trolled device of any suitable construction bringing thefurnace-door into its closed relation with the furnace or heater.

During the night, when the fire door of the furnace or heater is toremain open, all that is necessary is to swing the setting-arm orelement 21 horizontally in the direction of the arrow w in Fig. 2 of thedrawings, causing said arm or element to be brought into retainedengagement with any one of the ratchet teeth 12 according to the degreeof open relation of the fire-door desired. This movement of the said armor element 21 produces a rotary movement of the spindle or stud 10,whereby the coiled spring is brought imder tension. The door-engagingarm or lever 30 is then properly connected by means of its portion 31with the hexagonal or other polygonally shaped end-portion of thespindle or stud 10, with the said lever or arm 30 resting against theface of the door, substantially in the manner shown in Fig. 3 of thedrawings. The ring or link 32 of the usual chain 33 leading to andconnected with the time-controlled diaphragm-rod of the furnace orheater, adapted to be released by a time set clock, is then insertedover the free endportion of said setting element or arm 21,

as indicated in said Fig. 3 of the drawings, the said chain being heldin its position by contact of the said link or ring 32 with the stop-lug29, as shown, and without, however, lifting the element or arm from itsretaining engagement with the ratchet-tooth 12. In the morning, at thepreviously determined time, when the time-set clock releases thediaphragm-rod, in the manner of my said former Letters-Patent No.1,103,574, and raises the end of the diaphragm-rod to which said chainis attached, the consequent pull upon the chain will lift the element orarm into the position, indicated in Fig.

o of the drawings, out of its retaining engagement, thus immediatelyallowing the coils of the spring 13 to act, and cause the spring toassume its normal position at rest. The rotatable returning movement ofthe spindle or stud 10, simultaneously returns the members 20 and 21,and the lever or arm 30 from their relative positions, indicated in Fig.3 of the drawings to their normal initial positions represented in Figs.1 and 2 of the drawings, the returning movement of the lever or arm 30,on account of its action upon'the outer face of the fire-door 4, alsoreturning said door into its closed relation with the heater or furnace,as will be clearly evident.

With large and heavy furnace-doors it may be necessary to increase thetension of the spring 13. This is readily accomplished, without openingthe fire-door 4, by taking hold of the lever or arm 30 and moving it inthe direction of the arrow 3 in Fig. 3 of the drawings, and therebylikewise rotating the spindle or stud 10' and bringing the settingmember or arm 21 into retained engagement with any one of theratchet-teeth 12 that may be desired, thus partially winding the spring13 and bringing its coils under the necessary tension. The lever or arm30 which now stands, say in the position represented in Fig. 3 of thedrawings, is now removed from the polygonal portion of the spindle orstud 12 and-then replaced upon said portion of the spindle or stud sothat it will stand in the position shown in Fig. 2 of the drawings,resting directly against the face of the closed fire-door 4. WVhen thedoor 4 is opened for the night, the swinging action of the door againstthe lever or arm 30 will still further move the setting element or arm21 into another ratchet tooth 12 to be held thereby, and whereby thetension of the spring 13 is still further increased. The chain 33 isthen applied to said element or arm 21 in the manner and for thepurposes herein-above described.

My novel form of furnace-door operating and closing mechanism may bereadily applied to any suitable furnace, heater, boiler, and the like,and with slight changes and modifications may be used with any suitableconstruction of time-controlled damper-regulating and door-controllingdevices for such furnaces, heaters, and the like, without departing fromthe principles of the present invention.

I am fully aware, that changes may be made in the general arrangementsand combinations of the various devices and parts, as well as in thedetails of the construction of the said parts, without departing fromthe scope of the present invention as set forth in the foregoingspecification, and as defined in the clauses of the claim which isappended thereto. Hence, I do not limit my invention to the exactarrangementsand combinations of the said various devibes and partsadescribed in the said specification, nor do I confine myself to theeXact'det-ails of the construction of the said'parts, 'as'illu's tratedin the accompanying drawings. vl I claim: Y I I l 7 1. Afdoor-operatingand closing maria nism comprising an upright, means for; attachment ofsaid uprightupon a hinge-lug, a spindle rotatably. connected with. saidupright, a setting-element connected with said spindle, a retainingmeans connected with said upright with which said settingele ment can bebrought into separable retaining engagement, and means also connectedwith said spindlefor bringing said setting means under tension.

2. A door-operating and closing-mechanism-comprising an upright, an openframelike element extending from said upright adaptedto-embrace ahinge-lug, means for attachment of said frame-like element to saidhinge-lug, a spindle rotatably connect- .ed with said upright, a settingelementconnected with said spindle, a retaining means connected withsaidupright with which said setting-element can be brought intoseparable retaining engagement, and means also connected with saidspindle for bringing said setting means under tension.

3. A door-operating and closing mechanism comprising an upright, meansfor attachment of said upright upon a hinge-lug, a spring-controlledspindle rotatably con nected with said upright, a setting-elementconnected with said spindle, a retaining means. connected with saidupright with which said setting-element can be-brought .into separableretaining engagement, and means connected with said spindle for bringingsaid spindle and setting means under tension. M

l. A door-operating and closing mechanism comprising an upright, meansfor attachment of said upright upon a hinge-lug,

a spring-controlled spindle rotatably connected with said upright, asetting-element connected with said spindle, a retaining :meansconnected with said upright with which said setting-element can bebrought into separable retaining engagement, said spindle having apolygonally shaped portion, and a lever also formed with a polygnallyshaped recess adapted to be arranged over said polygonally shapedportion of the spindle, for bringing said spindle and set- .ting meansunder tension.

5. A door-operating and closing mechanism comprising an upright, an openframelike element extending from said upright adapted to embrace ahinge-lug, means for attachment of saidframe-like element to saidhingelug, a spring-controlled spindle rotatably connected .with said.upright, a setting elementconnectedwith said spindle, a retaining meansconnected with said up. right with which said setting element. can bebrought into separableretaining engagement,land 1neansconnected withsaid spin- Ydle .for 'bringingfsaidspindle and setting means undertension. 7

. '6. .AI dooroperatmg andclosing mechanism comprising an uprlght, anopen framei.

ment, said spindle having a' 'polvgonally shaped portion, and aflevcralso formed with a polyg'onally shaped recess adapted to be arrangedover said polygonally shaped por tion of the'sp'indle,f0 r bringing saidspindle and 'settijng means under tension. 7. A door-operating .andclosing mechanism'comprising'an upright, means for attachment of saidupright upon a hinge-lug, "a spring-controlled spindle rotatably' con-'nected with said upright, a setting arm connected with said spindle, aquadrant [con- -n ected with said upright,said quadrant havingratchet-teeth with whiclrsaid setting arm can be brought into separableretaining engagement, and means connected with said spindle for bringingsaid spindle and setting arm, under tension.

8 A door-operating and closing mechanism comprising an upright, meansfor attachment of said upright upon a hingelug, a spring-controlledspindle rotatably con 'nected with said upright, a setting arm connectedwith said spindle, a quadrant connected with said upright, said quadranthav-' ing ratchet-teeth with which said setting "arm can be brought intoseparable retaining engagement, said spindle having a polygonally shapedportion, and a lever also formed with a polygonally shaped recessadapted to be arranged over said polygonally shaped portion of thespindle, for bringing said spindle and setting means under tension. 7 I

' 9. A door-operating and closing mechanism comprising an upright, anopen framea like element extending from said upright adapted to embracea hinge-lug, means for attachment of said frame-like element to saidhinge-lug, a spring-controlled spindle rotatably connected withsaid'upright, a setting arm connected with said spindle, a quadrantconnected with said upright, said quadrant having ratchet-teeth withwhich ,said setting arm can be brought into separable retainingengagement, and means connected with said spindle for bringing saidspindle and setting arm under tension. 10. A door-operating and closingmechanism comprising an upright, an open framelike element extendingfrom said upright adapted to embrace a hinge-lug, means for attachmentof said frame-like element to said hinge-lug, a spring-controlledspindle rotatably connected with said upright, a setting arm connectedwith said spindle, a quadrant connected with said upright, said quadranthaving ratchetteeth with which said setting arm can be brought intoseparable retaining engagement, said spindle having a polygonally shapedportion, and a lever also formed with a polygonally shaped recessadapted to be arranged over said po- 'lygonallyshaped portion of thespindle, for

bringing said spindle and setting means under tension.

11. A door-operating and closing mechaanism comprising an upright, upperand lower supporting lugs extending from said upright, a stud extendingupwardly from said lower supporting lug, and said upper supporting lugbeing provided with a bearing-portion, a spindle rotatably mounted insaid bearing-portion, a spring connected at its respective ends to saidstud and said spindle, a setting-arm connected with said spindle, aquadrant connected with said upright, said quadrant having ratchet-teethwith which said setting arm can be brought into separable retaininengagement, and

means connected with said spindle for bringing said spring andsetting-arm under tension.

12. A door-operating and closing mechanism comprising an upright, upperand lower supporting lugs extending from said upright, a stud extendingupwardly from said lower supporting lug, and said upper supporting lugbeing provided with a bearing-portion, a spindle rotatably mounted insaid bearing-portion, a spring connected at its respective ends to saidstud and said spindle, a setting-arm connected with said spindle, aquadrant connected with said upright, said quadrant having ratchet-teethwith which said setting-arm can be brought into separable retainingengagement, said spindle having a polygonally shaped portion, and alever also formed with a polygonally shaped recess adapted to bearranged over said polygonally shaped portion of the spindle, forbringing said spindle and setting means under tension.

13. A door-operating and closing mechanism comprising an upright, upperand lower supporting lugs extending from said upright, a stud extendingupwardly from said lower supporting lug, and said upper supporting lugbeing provided with a bearing-portion, a spindle rotatably mounted insaid bearing-portion, a spring connected at its respective ends tosaidstud and said spindle, a setting-arm connected with said spindle, aquadrant connected with said upright, said quadrant having ratchet-teethwith which said setting-arm can be broughtinto separable retainingengagement, and means connected with said spindle for bringing saidspring and setting-arm under tension, combined with an open frame-likeelement extending from said upright adapted to embrace a hinge-lug, andmeans for attachment of said frame-like element to said hinge-lug.

14. A door-operating and closing mechanism comprising an upright, upperand lower supporting lugs extending from said upright, a stud extendingupwardly from said lower supporting lug, and said upper supporting lugbeing provided with a bearing-portion, a spindle rotatably mounted insaid bearing-portion, a spring connected at its respective ends to saidstud and said spindle, a setting-arm connected with said spindle, aquadrant connected with said upright, said quadrant having ratchet-teethwith which said setting-arm can be brought into separable retainingengagement, said spindle having a polygonally shaped portion, and alever also formed with a polygonally shaped recess adapted to bearranged over said polygonally shaped portion of the spindle, forbringing said spindle and setting means under tension, combined with anopen framelike element extending from said upright adapted to embrace ahinge-lug, and means for attachment of said frame-like element to saidhinge-lug.

15. A door-operating and closing mechanism comprising an upright, upperand lower supporting lugs extending from said upright, astud extendingupwardly from said lower supporting lug, and said upper supporting lugbeing provided with a bearing-portion, a spindle rotatably mounted insaid bearing-portion, a spring connected at its respective" ends to saidstud and said spindle, a setting element comprising two members, one ofsaid members being .connected with said spindle, fingers connected withsaid member, and a pivot-pin connected with said fingers, said othermember being in the form of an arm pivoted upon said pin, a quadrantconnected with said upright, said quadrant having ratchet-teeth withwhich said setting-arm can be brought into separable retainingengagement, and means connected with said spindle for bringing saidspring and setting-arm under tenslon.

16. A door-operating and closing mechanism comprising an upright, upperand lower supporting lugs extending from said upright, a stud extendingupwardly from said lower supporting lug, and saidupper supporting lugbeing providedwith a bearing-portion, a spindle rotatably mounted insaid bearing-portion, a spring connected at its, respective ends tosaidstud and said spindle, a setting element comprising two members, one ofsaid members being connected with said spindle, fingers connected withsaid member, and a pivot-pin connected with said fingers, said othermember being in the form of an arm pivoted upon said pin, a quadrantconnected with said upright, said quadrant having ratchet-teeth withwhich said setting arm can be brought into separable retainingengagement, said spindle having a polygonally shaped portion, and alever also formed with a polygonally shaped recess adapted to bearranged over said polygonally shaped portion of the spindle, forbringing saidspindle'and settingmeans under tension.

17 A door-operating and closing mechanism comprising an upright, aspring-controlled spindle rotatably connected with said upright, asetting element comprising twomembers, one of said members beingconnected with saidspindle, said other member being in the form of anarm, a means of pivotal connection between said two members, a quadranthaving ratchet-teeth with which said arm can be brought into separableengagement, and means connected with said spindle for bringing saidspindle and setting means under tension.

18..A door-operatingand closing mechanism comprising an upright, aspring-controlled spindle rotatably connected with said upright, asetting element comprising two members, one of said members beingconnected with said spindle, saidother member being in the form of anarm, a means of pivotal connection between said two members, a quadranthaving ratchet-teeth with which said arm can be brought into separ-Copies of this patent m'ay be obtained for able engagement, combinedwith an open frame-like element extending from said upright adapted toembrace a hinge-lug, and means for attachment of said frame like elementto said hinge-lug.

19. A door-operating and closing mechanism comprising an upright, aspring-"0on trolled spindle rotatably connected with said upright, asetting element comprising 'two members, one of said members beingconnected with said spindle, said other member being in the form of anarm, a means of pivotal connection between said two members, a quadranthaving ratchet-teeth with which said arm can be brought into separableengagement, and means connected with said spindle for bringing saidspindle and setting means under tension, combined with means for theattachment of saiddoor-opcrating and closing means to a furnace.

20. A door-operating and closing mechanism comprising an upright, aspring-controlled spindle rotatably connected with said upright, asetting element comprising two members, one of said members beingconnected with said spindle, said other member being in the form of anarm, a means of pivotal connection between said two members, a'quadranthaving ratchet-teeth with set forth above I have hereunto set my hand ii this 14th day of December, 1914.

ARTHUR P. FELSBERG.

l'Vitnesses FREDK H. N. FRAENTZEL. FRED L. G. FRAnN'rznn,

five cents each, byaddressing the Commissioner of Patents Washington, D.0'.

